I don't believe occasional use of a stainless brush will hurt a modern shotgun barrel, chromed or not. I have a set of stainless brushes sold by Troy Peak, to clean my Beretta 390's gas piston and cylinder. The set includes a stainless bore brush and I bought, at extra cost, a stainless chamber brush. I have not seen any sign of problems with the set, adding that I don't clean the gun very often. The chamber brush did remove a small bit of metal from the chamber of a 100 year-old Iver Johnson.(spun with an electric drill). That being said, a stiff bronze bore brush, wrapped with 00 to 0000 steel wool and spun with an electric drill does a fine job, used with a good bore cleaner like Shooter's Choice. You will not live long enough to measure any metal removed by this method.
Last edited by Jim Legg; 01/12/08 07:31 PM.
